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A method of data transaction and confirmation based on blockchain

A blockchain and data technology, applied in data processing applications, digital data protection, buying and selling/lease transactions, etc., can solve problems such as right confirmation and data privacy, and achieve the effect of alleviating the risk of single point of failure

Active Publication Date: 2022-07-01
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although data transactions have accelerated the sharing and circulation of data to a certain extent, there are still issues of data privacy, confirmation of rights, and trust between both parties in the process of data transactions.

Method used

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  • A method of data transaction and confirmation based on blockchain
  • A method of data transaction and confirmation based on blockchain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: as figure 1 As shown, a method for data transaction and confirmation based on blockchain, the specific steps of the method are as follows:

[0034] Step1: The data seller chooses to sell the right to use the data. Use digital watermarking technology to add an invisible watermark mark to the data. The digital watermark mark contains the data seller information, data usage range and other information, and then uses the SM3 algorithm to hash the data to obtain a hash. If the data seller chooses to sell the ownership of the data, the SM3 algorithm is used to hash the original data to obtain the hash value. Then use the SM4 algorithm to encrypt the data to be sold to obtain the first ciphertext, upload the first ciphertext to the IPFS file system, and the data seller obtains the storage address of the first ciphertext in the IPFS file system.

[0035] Step2: Data sellers and data buyers publish transaction requirements to the blockchain data transaction system, w...

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Abstract

The invention relates to a method for data transaction and right confirmation based on block chain, and belongs to the technical field of block chain. The invention proposes a method for data transaction and right confirmation realized by using blockchain technology and digital watermarking technology. Data buyers and sellers publish transaction requirements to the blockchain platform, and the system will conduct transactions according to the requirements published by both parties. It is recommended that the two parties to the transaction reach a transaction intention to complete the transfer of assets through smart contracts. In order to better determine the ownership of the data, digital watermarking technology is used to mark the data. When there is a data dispute, the data mark can be extracted and the transaction records can be traced. Confirm right. Compared with the prior art, the present invention proposes a scheme of using blockchain technology to conduct data transactions, alleviates the problem of single-point attacks on the centralized platform, realizes the non-tampering and traceable characteristics of data transaction information, and introduces digital watermarking at the same time. technology to facilitate the confirmation of the disputed data.

Description

technical field [0001] The invention relates to a method for data transaction and right confirmation based on block chain, and belongs to the technical field of block chain. Background technique [0002] In the current era of big data, the ability to process and use big data is very important. By analyzing massive data and extracting key information, it can provide decision-making support for individuals. The value of big data has been widely recognized. In order to perform better data analysis, it is necessary to obtain data from more fields to support, so the transaction of big data has begun to develop rapidly. Although data transactions have accelerated the sharing and circulation of data to a certain extent, there are still issues such as data privacy, confirmation of rights, and trust between transaction parties in the current data transaction process. [0003] The blockchain is a chain structure that connects blocks in a sequential manner in chronological order. It e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q20/12G06Q30/06G06F21/16G06F21/62G06F21/64G06F21/60G06F16/182
CPCG06Q20/1235G06Q30/0631G06Q30/0635G06F21/16G06F21/6218G06F21/602G06F21/64G06F16/1837G06F2221/2107G06F21/1063
Inventor 沈韬葛纪红柏粉花刘英莉
Owner KUNMING UNIV OF SCI & TECH
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